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          <h1 class="post-title" itemprop="name headline">Zookeeper客户端zkServer、zkCli命令详解</h1>
        

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        <blockquote>
<p>Zookeeper客户端zkServer、zkCli命令详解</p>
</blockquote>
<h4 id="zkServer客户端"><a href="#zkServer客户端" class="headerlink" title="zkServer客户端"></a>zkServer客户端</h4><ul>
<li>1、查看zk服务器状态</li>
</ul>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br></pre></td><td class="code"><pre><span class="line">./zkServer.sh status</span><br><span class="line"></span><br><span class="line">JMX enabled by default</span><br><span class="line">Using config: /usr/local/zookeeper-server1/bin/../conf/zoo.cfg</span><br><span class="line">Mode: leader</span><br></pre></td></tr></table></figure>
<ul>
<li>2、启动/关闭zk服务器</li>
</ul>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br></pre></td><td class="code"><pre><span class="line">./zkServer.sh start </span><br><span class="line">./zkServer.sh stop</span><br><span class="line"></span><br><span class="line">#可以指定conf </span><br><span class="line">./zkServer.sh start ../conf/zoo_1.cfg</span><br></pre></td></tr></table></figure>
<ul>
<li>3、查看 zkServer.sh 帮助信息</li>
</ul>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br></pre></td><td class="code"><pre><span class="line">./zkServer.sh help</span><br><span class="line">ZooKeeper JMX enabled by default</span><br><span class="line">Using config: /bigdata/zookeeper-3.4.10/bin/../conf/zoo.cfg</span><br><span class="line">Usage: ./zkServer.sh &#123;start|start-foreground|stop|restart|status|upgrade|print-cmd&#125;</span><br></pre></td></tr></table></figure>
<h4 id="zkCli客户端"><a href="#zkCli客户端" class="headerlink" title="zkCli客户端"></a>zkCli客户端</h4><ul>
<li>1、查看 zkCli.sh 帮助信息</li>
</ul>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br></pre></td><td class="code"><pre><span class="line">./zkCli.sh help</span><br><span class="line"></span><br><span class="line">ZooKeeper -server host:port cmd args</span><br><span class="line">	stat path [watch]</span><br><span class="line">	set path data [version]</span><br><span class="line">	ls path [watch]</span><br><span class="line">	delquota [-n|-b] path</span><br><span class="line">	ls2 path [watch]</span><br><span class="line">	setAcl path acl</span><br><span class="line">	setquota -n|-b val path</span><br><span class="line">	history</span><br><span class="line">	redo cmdno</span><br><span class="line">	printwatches on|off</span><br><span class="line">	delete path [version]</span><br><span class="line">	sync path</span><br><span class="line">	listquota path</span><br><span class="line">	rmr path</span><br><span class="line">	get path [watch]</span><br><span class="line">	create [-s] [-e] path data acl</span><br><span class="line">	addauth scheme auth</span><br><span class="line">	quit</span><br><span class="line">	getAcl path</span><br><span class="line">	close</span><br><span class="line">	connect host:port</span><br></pre></td></tr></table></figure>
<ul>
<li>2、连接zookeeper</li>
</ul>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br></pre></td><td class="code"><pre><span class="line">连接本机zookeeper服务</span><br><span class="line">./zkCli.sh</span><br><span class="line"></span><br><span class="line">连接远程zookeeper服务，跟上参数：</span><br><span class="line">./zkCli.sh -server ip:port</span><br></pre></td></tr></table></figure>
<ul>
<li>3、创建节点</li>
</ul>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br></pre></td><td class="code"><pre><span class="line">create [-s] [-e] path data acl</span><br><span class="line"></span><br><span class="line">-s 表示是顺序节点</span><br><span class="line">-e 标识是临时节点</span><br><span class="line">path 节点路径</span><br><span class="line">data 节点数据</span><br><span class="line">acl 节点权限</span><br><span class="line"></span><br><span class="line">注：临时节点在客户端结束与服务器的会话后，自动消失</span><br></pre></td></tr></table></figure>
<ul>
<li>4、修改节点的数据</li>
</ul>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">set path data [version] </span><br><span class="line">注：修改当前节点的数据内容 如果指定版本，需要和当前节点的数据版本一致</span><br></pre></td></tr></table></figure>
<ul>
<li>5、删除指定路径的节点</li>
</ul>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br></pre></td><td class="code"><pre><span class="line">delete path [version]</span><br><span class="line">注： 删除指定路径的节点 如果有子节点要先删除子节点</span><br><span class="line"></span><br><span class="line">rmr path </span><br><span class="line">注： 删除当前路径节点及其所有子节点</span><br></pre></td></tr></table></figure>
<ul>
<li>6、列出节点</li>
</ul>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br></pre></td><td class="code"><pre><span class="line">ls path [watch]</span><br><span class="line">ls2 path [watch]</span><br><span class="line"></span><br><span class="line">注：[watch] 添加一个 watch（监视器），如果该节点发生变化，watch 可以使客户端得到通知。</span><br><span class="line">watch 只能被触发一次。如果要一直获得znode的创建和删除的通知，那么就需要不断的在znode上</span><br><span class="line">开启观察模式。如果在该 path 下创建节点，会产生 NodeChildrenChanged 事件；如果在该 path</span><br><span class="line">下删除节点，会产生 NodeDeleted 事件。</span><br><span class="line"></span><br><span class="line">使用 ls2 命令来查看某个目录包含的所有文件，与 ls 不同的是它查看到time、version等信息</span><br></pre></td></tr></table></figure>
<ul>
<li>7、获取节点信息</li>
</ul>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br></pre></td><td class="code"><pre><span class="line">get path [watch]</span><br><span class="line"></span><br><span class="line">注：[watch] 添加一个 watch（监视器），如果节点内容发生改变，会产生 NodeDataChanged 事件；如果删除节点，会产生 NodeDeleted 事件。</span><br><span class="line"></span><br><span class="line">[zk: localhost:2181(CONNECTED) 4] get /mynode</span><br><span class="line">hello</span><br><span class="line">cZxid = 0x4e8</span><br><span class="line">ctime = Mon Apr 02 17:25:29 CST 2018</span><br><span class="line">mZxid = 0x4e8</span><br><span class="line">mtime = Mon Apr 02 17:25:29 CST 2018</span><br><span class="line">pZxid = 0x4e8</span><br><span class="line">cversion = 0</span><br><span class="line">dataVersion = 0</span><br><span class="line">aclVersion = 0</span><br><span class="line">ephemeralOwner = 0x0</span><br><span class="line">dataLength = 5</span><br><span class="line">numChildren = 0</span><br><span class="line"></span><br><span class="line">每一个对znode树的更新操作，都会被赋予一个全局唯一的ID，我们称之为zxid（ZooKeeper Transaction ID）。</span><br><span class="line">更新操作的ID按照发生的时间顺序升序排序。例如，z1大于z2，那么z1的操作就早于z2操作。</span><br><span class="line"></span><br><span class="line">每个 znode 的状态信息包含以下内容：</span><br><span class="line"></span><br><span class="line">czxid，创建（create）该 znode 的 zxid</span><br><span class="line">mzxid，最后一次修改（modify）该 znode 的 zxid</span><br><span class="line">pzxid，最后一次修改该 znode 子节点的 zxid</span><br><span class="line">ctime，创建该 znode 的时间</span><br><span class="line">mtime，最后一次修改该 znode 的时间</span><br><span class="line">dataVersion，该节点内容的版本，每次修改内容，版本都会增加</span><br><span class="line">cversion，该节点子节点的版本</span><br><span class="line">aclVersion，该节点的 ACL 版本</span><br><span class="line">ephemeralOwner，如果该节点是临时节点（ephemeral node），会列出该节点所在客户端的 session id；如果不是临时节点，该值为 0</span><br><span class="line">dataLength，该节点存储的数据长度</span><br><span class="line">numChildren，该节点子节点的个数</span><br></pre></td></tr></table></figure>
<ul>
<li>8、检查状态 stat</li>
</ul>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br></pre></td><td class="code"><pre><span class="line">stat path [watch]</span><br><span class="line"></span><br><span class="line">注：[watch] 添加一个 watch（监视器），如果节点内容发生改变，会产生 NodeDataChanged 事件；如果删除节点，会产生 NodeDeleted 事件。</span><br><span class="line"></span><br><span class="line">与 get 的区别是，不回列出 znode 的值。</span><br></pre></td></tr></table></figure>
<ul>
<li>9、打开和关闭连接</li>
</ul>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br></pre></td><td class="code"><pre><span class="line">打开连接 connect 指定 host:port 可以连接远程的 zk 服务。缺省的时候，会连接本地的 2181 端口。</span><br><span class="line">connect host:port</span><br><span class="line"></span><br><span class="line">关闭连接 close</span><br><span class="line">close</span><br></pre></td></tr></table></figure>
<ul>
<li>10、退出连接 quit</li>
</ul>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">quit</span><br><span class="line">直接退出当前的 zkCli 命令行。</span><br></pre></td></tr></table></figure>
<ul>
<li>11、ACL命令</li>
</ul>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br><span class="line">60</span><br><span class="line">61</span><br><span class="line">62</span><br><span class="line">63</span><br><span class="line">64</span><br><span class="line">65</span><br><span class="line">66</span><br></pre></td><td class="code"><pre><span class="line">一个znode中不仅包含了存储的数据，还有 ACL（Access Control List）。</span><br><span class="line">znode的创建时，可以给它设置一个ACL（Access Control List），来决定谁可以对znode做哪些操作。</span><br><span class="line"></span><br><span class="line">ACL 具有以下特点：</span><br><span class="line"></span><br><span class="line">ZooKeeper的权限控制是基于每个znode节点的，需要对每个节点设置权限</span><br><span class="line">每个znode支持设置多种权限控制方案和多个权限</span><br><span class="line">子节点不会继承父节点的权限，客户端无权访问某节点，但可能可以访问它的子节点</span><br><span class="line">所以任何一个客户端都可以通过exists 操作来获得任何znode的状态，从而得知znode是否真的存在。 </span><br><span class="line"></span><br><span class="line">ACL Permissions：</span><br><span class="line"></span><br><span class="line">ACL 权限	ACL 简写	允许的操作</span><br><span class="line">CREATE	c	创建子节点</span><br><span class="line">READ	r	获取节点的数据和它的子节点</span><br><span class="line">WRITE	w	设置节点的数据</span><br><span class="line">DELETE	d	删除子节点 （仅下一级节点）</span><br><span class="line">ADMIN	a	设置 ACL 权限 </span><br><span class="line"></span><br><span class="line">权限相关命令：</span><br><span class="line"></span><br><span class="line">命令	语法		描述</span><br><span class="line">getAcl	getAcl path	读取ACL权限</span><br><span class="line">setAcl	setAcl path acl	设置ACL权限</span><br><span class="line">addauth	addauth scheme auth	添加认证用户</span><br><span class="line">create	create [-s] [-e] path data acl	创建节点时指明 ACL 权限 </span><br><span class="line"></span><br><span class="line">ACL Schemes：</span><br><span class="line">ZooKeeper内置了一些权限控制方案，可以用以下方案为每个节点设置权限：</span><br><span class="line"></span><br><span class="line">方案	描述</span><br><span class="line">world	只有一个用户：anyone，代表所有人（默认）</span><br><span class="line">ip	使用IP地址认证</span><br><span class="line">auth	使用已添加认证的用户认证</span><br><span class="line">digest	使用“用户名:密码”方式认证 </span><br><span class="line"></span><br><span class="line">1.world 方案</span><br><span class="line">设置方式：setAcl &lt;path&gt; world:anyone:&lt;acl&gt;</span><br><span class="line"></span><br><span class="line">注：默认情况下时 world 方法，任何人有所有权限：</span><br><span class="line"></span><br><span class="line">2.IP 方案</span><br><span class="line">设置方式：setAcl &lt;path&gt; ip:&lt;ip&gt;:&lt;acl&gt;</span><br><span class="line"></span><br><span class="line">注：&lt;ip&gt;：可以是具体IP也可以是IP/bit格式，即IP转换为二进制，匹配前bit位，如192.168.0.0/16匹配192.168.*.*</span><br><span class="line"></span><br><span class="line">3.auth 方案</span><br><span class="line"></span><br><span class="line">设置方式</span><br><span class="line">addauth digest &lt;user&gt;:&lt;password&gt; #添加认证用户</span><br><span class="line">setAcl &lt;path&gt; auth:&lt;user&gt;:&lt;acl&gt;</span><br><span class="line"></span><br><span class="line">4.digest 方案</span><br><span class="line"></span><br><span class="line">设置方式</span><br><span class="line">setAcl &lt;path&gt; digest:&lt;user&gt;:&lt;password&gt;:&lt;acl&gt;</span><br><span class="line"></span><br><span class="line">这里的密码是经过SHA1及BASE64处理的密文，在SHELL中可以通过以下命令计算：</span><br><span class="line">echo -n &lt;user&gt;:&lt;password&gt; | openssl dgst -binary -sha1 | openssl base64</span><br><span class="line">先来算一个密文密码：</span><br><span class="line">echo -n admin:admin | openssl dgst -binary -sha1 | openssl base64</span><br><span class="line">x1nq8J5GOJVPY6zgzhtTtA9izLc=</span><br><span class="line"></span><br><span class="line">5.创建节点时指定 ACL</span><br><span class="line"></span><br><span class="line">create /mynode hello auth:admin:cdrwa</span><br></pre></td></tr></table></figure>
<ul>
<li>12、其他命令</li>
</ul>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br></pre></td><td class="code"><pre><span class="line">历史记录 history</span><br><span class="line">history </span><br><span class="line">注：列出最近的10条历史记录</span><br><span class="line"></span><br><span class="line">重复之前的命令 redo</span><br><span class="line">redo cmdno </span><br><span class="line">根据 cmdno 重复之前的命令，cmdno 就是方括号里面最后的数字，每次执行命令都会自增。</span><br></pre></td></tr></table></figure>
<h4 id="使用ZooKeeper四字命令"><a href="#使用ZooKeeper四字命令" class="headerlink" title="使用ZooKeeper四字命令"></a>使用ZooKeeper四字命令</h4><table>
<thead>
<tr>
<th>ZooKeeper四字命令</th>
<th>功能描述</th>
</tr>
</thead>
<tbody>
<tr>
<td>conf</td>
<td>输出相关服务配置的详细信息。</td>
</tr>
<tr>
<td>cons</td>
<td>列出所有连接到服务器的客户端的完全的连接 / 会话的详细信息。包括“接受 / 发送”的包数量、会话 id 、操作延迟、最后的操作执行等等信息。</td>
</tr>
<tr>
<td>dump</td>
<td>列出未经处理的会话和临时节点。</td>
</tr>
<tr>
<td>envi</td>
<td>输出关于服务环境的详细信息（区别于 conf 命令）。</td>
</tr>
<tr>
<td>reqs</td>
<td>列出未经处理的请求</td>
</tr>
<tr>
<td>ruok</td>
<td>测试服务是否处于正确状态。如果确实如此，那么服务返回“imok ”，否则不做任何相应。</td>
</tr>
<tr>
<td>stat</td>
<td>输出关于性能和连接的客户端的列表。</td>
</tr>
<tr>
<td>wchs</td>
<td>列出服务器 watch 的详细信息。</td>
</tr>
<tr>
<td>wchc</td>
<td>通过 session 列出服务器 watch 的详细信息，它的输出是一个与watch 相关的会话的列表。</td>
</tr>
<tr>
<td>wchp</td>
<td>通过路径列出服务器 watch 的详细信息。它输出一个与 session相关的路径。</td>
</tr>
</tbody>
</table>
<p>参考链接：<br><a href="https://blog.csdn.net/zhang123456456/article/details/78243658" target="_blank" rel="noopener">https://blog.csdn.net/zhang123456456/article/details/78243658</a><br><a href="https://blog.csdn.net/feixiang2039/article/details/79810102" target="_blank" rel="noopener">https://blog.csdn.net/feixiang2039/article/details/79810102</a></p>

      
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        <div style="text-align:center;color:#ccc;font-size:14px">-------------已经触及底线 <i class="fa fa-paw"></i> 感谢您的阅读-------------</div>
    
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<div class="my_post_copyright">
  <p><span>本文标题:</span>Zookeeper客户端zkServer、zkCli命令详解</p>
  <p><span>文章作者:</span>趙小傑~～</p>
  <p><span>发布时间:</span>2019年06月28日 - 00:08:12</p>
  <p><span>最后更新:</span>2019年06月29日 - 22:05:42</p>
  <p><span>原始链接:</span><a href="/2019/06/28/Zookeeper客户端zkServer、zkCli命令详解/" title="Zookeeper客户端zkServer、zkCli命令详解">https://cnsyear.com/2019/06/28/Zookeeper客户端zkServer、zkCli命令详解/</a>
    <span class="copy-path" title="点击复制文章链接"><i class="fa fa-clipboard" data-clipboard-text="https://cnsyear.com/2019/06/28/Zookeeper客户端zkServer、zkCli命令详解/" aria-label="复制成功！"></i></span>
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  <p><span>许可协议:</span><i class="fa fa-creative-commons"></i> <a rel="license" href="https://creativecommons.org/licenses/by-nc-nd/4.0/" target="_blank" title="Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)">署名-非商业性使用-禁止演绎 4.0 国际</a> 转载请保留原文链接及作者。</p>  
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              <div class="post-toc-content"><ol class="nav"><li class="nav-item nav-level-4"><a class="nav-link" href="#zkServer客户端"><span class="nav-number">1.</span> <span class="nav-text">zkServer客户端</span></a></li><li class="nav-item nav-level-4"><a class="nav-link" href="#zkCli客户端"><span class="nav-number">2.</span> <span class="nav-text">zkCli客户端</span></a></li><li class="nav-item nav-level-4"><a class="nav-link" href="#使用ZooKeeper四字命令"><span class="nav-number">3.</span> <span class="nav-text">使用ZooKeeper四字命令</span></a></li></ol></div>
            

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  <script type="text/javascript">
    // Popup Window;
    var isfetched = false;
    var isXml = true;
    // Search DB path;
    var search_path = "search.xml";
    if (search_path.length === 0) {
      search_path = "search.xml";
    } else if (/json$/i.test(search_path)) {
      isXml = false;
    }
    var path = "/" + search_path;
    // monitor main search box;

    var onPopupClose = function (e) {
      $('.popup').hide();
      $('#local-search-input').val('');
      $('.search-result-list').remove();
      $('#no-result').remove();
      $(".local-search-pop-overlay").remove();
      $('body').css('overflow', '');
    }

    function proceedsearch() {
      $("body")
        .append('<div class="search-popup-overlay local-search-pop-overlay"></div>')
        .css('overflow', 'hidden');
      $('.search-popup-overlay').click(onPopupClose);
      $('.popup').toggle();
      var $localSearchInput = $('#local-search-input');
      $localSearchInput.attr("autocapitalize", "none");
      $localSearchInput.attr("autocorrect", "off");
      $localSearchInput.focus();
    }

    // search function;
    var searchFunc = function(path, search_id, content_id) {
      'use strict';

      // start loading animation
      $("body")
        .append('<div class="search-popup-overlay local-search-pop-overlay">' +
          '<div id="search-loading-icon">' +
          '<i class="fa fa-spinner fa-pulse fa-5x fa-fw"></i>' +
          '</div>' +
          '</div>')
        .css('overflow', 'hidden');
      $("#search-loading-icon").css('margin', '20% auto 0 auto').css('text-align', 'center');

      $.ajax({
        url: path,
        dataType: isXml ? "xml" : "json",
        async: true,
        success: function(res) {
          // get the contents from search data
          isfetched = true;
          $('.popup').detach().appendTo('.header-inner');
          var datas = isXml ? $("entry", res).map(function() {
            return {
              title: $("title", this).text(),
              content: $("content",this).text(),
              url: $("url" , this).text()
            };
          }).get() : res;
          var input = document.getElementById(search_id);
          var resultContent = document.getElementById(content_id);
          var inputEventFunction = function() {
            var searchText = input.value.trim().toLowerCase();
            var keywords = searchText.split(/[\s\-]+/);
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            }
            var resultItems = [];
            if (searchText.length > 0) {
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              datas.forEach(function(data) {
                var isMatch = false;
                var hitCount = 0;
                var searchTextCount = 0;
                var title = data.title.trim();
                var titleInLowerCase = title.toLowerCase();
                var content = data.content.trim().replace(/<[^>]+>/g,"");
                var contentInLowerCase = content.toLowerCase();
                var articleUrl = decodeURIComponent(data.url);
                var indexOfTitle = [];
                var indexOfContent = [];
                // only match articles with not empty titles
                if(title != '') {
                  keywords.forEach(function(keyword) {
                    function getIndexByWord(word, text, caseSensitive) {
                      var wordLen = word.length;
                      if (wordLen === 0) {
                        return [];
                      }
                      var startPosition = 0, position = [], index = [];
                      if (!caseSensitive) {
                        text = text.toLowerCase();
                        word = word.toLowerCase();
                      }
                      while ((position = text.indexOf(word, startPosition)) > -1) {
                        index.push({position: position, word: word});
                        startPosition = position + wordLen;
                      }
                      return index;
                    }

                    indexOfTitle = indexOfTitle.concat(getIndexByWord(keyword, titleInLowerCase, false));
                    indexOfContent = indexOfContent.concat(getIndexByWord(keyword, contentInLowerCase, false));
                  });
                  if (indexOfTitle.length > 0 || indexOfContent.length > 0) {
                    isMatch = true;
                    hitCount = indexOfTitle.length + indexOfContent.length;
                  }
                }

                // show search results

                if (isMatch) {
                  // sort index by position of keyword

                  [indexOfTitle, indexOfContent].forEach(function (index) {
                    index.sort(function (itemLeft, itemRight) {
                      if (itemRight.position !== itemLeft.position) {
                        return itemRight.position - itemLeft.position;
                      } else {
                        return itemLeft.word.length - itemRight.word.length;
                      }
                    });
                  });

                  // merge hits into slices

                  function mergeIntoSlice(text, start, end, index) {
                    var item = index[index.length - 1];
                    var position = item.position;
                    var word = item.word;
                    var hits = [];
                    var searchTextCountInSlice = 0;
                    while (position + word.length <= end && index.length != 0) {
                      if (word === searchText) {
                        searchTextCountInSlice++;
                      }
                      hits.push({position: position, length: word.length});
                      var wordEnd = position + word.length;

                      // move to next position of hit

                      index.pop();
                      while (index.length != 0) {
                        item = index[index.length - 1];
                        position = item.position;
                        word = item.word;
                        if (wordEnd > position) {
                          index.pop();
                        } else {
                          break;
                        }
                      }
                    }
                    searchTextCount += searchTextCountInSlice;
                    return {
                      hits: hits,
                      start: start,
                      end: end,
                      searchTextCount: searchTextCountInSlice
                    };
                  }

                  var slicesOfTitle = [];
                  if (indexOfTitle.length != 0) {
                    slicesOfTitle.push(mergeIntoSlice(title, 0, title.length, indexOfTitle));
                  }

                  var slicesOfContent = [];
                  while (indexOfContent.length != 0) {
                    var item = indexOfContent[indexOfContent.length - 1];
                    var position = item.position;
                    var word = item.word;
                    // cut out 100 characters
                    var start = position - 20;
                    var end = position + 80;
                    if(start < 0){
                      start = 0;
                    }
                    if (end < position + word.length) {
                      end = position + word.length;
                    }
                    if(end > content.length){
                      end = content.length;
                    }
                    slicesOfContent.push(mergeIntoSlice(content, start, end, indexOfContent));
                  }

                  // sort slices in content by search text's count and hits' count

                  slicesOfContent.sort(function (sliceLeft, sliceRight) {
                    if (sliceLeft.searchTextCount !== sliceRight.searchTextCount) {
                      return sliceRight.searchTextCount - sliceLeft.searchTextCount;
                    } else if (sliceLeft.hits.length !== sliceRight.hits.length) {
                      return sliceRight.hits.length - sliceLeft.hits.length;
                    } else {
                      return sliceLeft.start - sliceRight.start;
                    }
                  });

                  // select top N slices in content

                  var upperBound = parseInt('1');
                  if (upperBound >= 0) {
                    slicesOfContent = slicesOfContent.slice(0, upperBound);
                  }

                  // highlight title and content

                  function highlightKeyword(text, slice) {
                    var result = '';
                    var prevEnd = slice.start;
                    slice.hits.forEach(function (hit) {
                      result += text.substring(prevEnd, hit.position);
                      var end = hit.position + hit.length;
                      result += '<b class="search-keyword">' + text.substring(hit.position, end) + '</b>';
                      prevEnd = end;
                    });
                    result += text.substring(prevEnd, slice.end);
                    return result;
                  }

                  var resultItem = '';

                  if (slicesOfTitle.length != 0) {
                    resultItem += "<li><a href='" + articleUrl + "' class='search-result-title'>" + highlightKeyword(title, slicesOfTitle[0]) + "</a>";
                  } else {
                    resultItem += "<li><a href='" + articleUrl + "' class='search-result-title'>" + title + "</a>";
                  }

                  slicesOfContent.forEach(function (slice) {
                    resultItem += "<a href='" + articleUrl + "'>" +
                      "<p class=\"search-result\">" + highlightKeyword(content, slice) +
                      "...</p>" + "</a>";
                  });

                  resultItem += "</li>";
                  resultItems.push({
                    item: resultItem,
                    searchTextCount: searchTextCount,
                    hitCount: hitCount,
                    id: resultItems.length
                  });
                }
              })
            };
            if (keywords.length === 1 && keywords[0] === "") {
              resultContent.innerHTML = '<div id="no-result"><i class="fa fa-search fa-5x" /></div>'
            } else if (resultItems.length === 0) {
              resultContent.innerHTML = '<div id="no-result"><i class="fa fa-frown-o fa-5x" /></div>'
            } else {
              resultItems.sort(function (resultLeft, resultRight) {
                if (resultLeft.searchTextCount !== resultRight.searchTextCount) {
                  return resultRight.searchTextCount - resultLeft.searchTextCount;
                } else if (resultLeft.hitCount !== resultRight.hitCount) {
                  return resultRight.hitCount - resultLeft.hitCount;
                } else {
                  return resultRight.id - resultLeft.id;
                }
              });
              var searchResultList = '<ul class=\"search-result-list\">';
              resultItems.forEach(function (result) {
                searchResultList += result.item;
              })
              searchResultList += "</ul>";
              resultContent.innerHTML = searchResultList;
            }
          }

          if ('auto' === 'auto') {
            input.addEventListener('input', inputEventFunction);
          } else {
            $('.search-icon').click(inputEventFunction);
            input.addEventListener('keypress', function (event) {
              if (event.keyCode === 13) {
                inputEventFunction();
              }
            });
          }

          // remove loading animation
          $(".local-search-pop-overlay").remove();
          $('body').css('overflow', '');

          proceedsearch();
        }
      });
    }

    // handle and trigger popup window;
    $('.popup-trigger').click(function(e) {
      e.stopPropagation();
      if (isfetched === false) {
        searchFunc(path, 'local-search-input', 'local-search-result');
      } else {
        proceedsearch();
      };
    });

    $('.popup-btn-close').click(onPopupClose);
    $('.popup').click(function(e){
      e.stopPropagation();
    });
    $(document).on('keyup', function (event) {
      var shouldDismissSearchPopup = event.which === 27 &&
        $('.search-popup').is(':visible');
      if (shouldDismissSearchPopup) {
        onPopupClose();
      }
    });
  </script>





  

  

  
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